Pneumatic-dispatch-tube carrier



Jan.'23,1923. f 1,443,232.

D. J. MACIVHLLAN.

PNEUMATIC DISPATCH TUBE CARRIER. Y min sans. 1921.4

` Elr-L..

f experienced.

Patented Jani. 23, 1923. y

UNITED STATES Parser cerner.. y

inizia DANIEL J. MACMILLAN, oFBRooKLYN, NEW YORK.

PNEUMATIIiC-DISPATCI-I-TU'BE CARRIER.

Application :filed September 6, 1921. Serial 'Il-Vo. 498,599.

pneumatic dispatch tube or carrier such as' is used in ydepartmentstores and the like and it `relates more specifically to an improvedbumper tor use in connection with such devices.

Carriersof this class now commonly usedv and marketedy are made up ofinner and outer telescopically Vconnected relatively movable tubeshaving registered openings through which the money or dispatch isinserted and removed, these tubes having bumpers arranged attheir-opposite ends and detachablyconnected with the tubes. Smallv boltsand nuts are employed for connecting the bumpers inplace and when thelatter become excessively woin and must necessarily be replaced by newones, as is a trequent occurrence, considerable difficulty is lt istherefore the. principal aim ofiltliis invention to devise, means forconnecting` the bumpers to the tubes of the carrier which is such inconstruction that it will enable `the bumpers to be quickly re? movedand replaced with new ones, and will hold them against rotation vwithrespect to the tubes.

.Another object of the invention isto devise an extremely simpleconstruction for carrying out the above end, it being such that itpermits the usual bolts and nuts to be entirely dispensed with, andconsisting merely of means for non-rotatably connecting the bumpers `inplace, and or' simple rotary catches or locking devices which :an

be easily and readily released to permit re- `the catch removed. i

view through a dispatch carrying tubecon-` structed in accordance with`this invention.

Figure 2 is a transverse sectional view A `taken substantially on theplane of the line 2-2 ofFig. l. f

Figure 8 is a view like Figure 2` showing Figure 4L is a detail sectiontaken substan-r` tially on theplaneot the lined- 4L of Fig. 2.

As commonly constructed, devices othis class comprise, as before brieiiyindicated,"

telescopica-ilyv connected tubes ywhich are formed with `openings toberegisteredto permit themoney or other dispatch t'o bef` carried, to beinserted vinto the same.. The" inner tube is closed at oneend while theremaining tube is open `at this end, but closed y at its opposite endand to these closed ends, the usualfelt bumpers or packing heads arebolted or otherwise detachably connected.v y

These` bumpers are subjected to excessive!!``v wear, and must frequentlybe replacedand vas before Vset forth, considerable difficulty isexperienced inreplacingthem with the typev ot fastenings or connectionsnow employed. i f

It is to be stated here that although the im-` i proved bumpers aresho-wn attached to a carrier of the4 above typeit is ofcourse understood that they need notberestricted to the showing, and can be usedwith other types of carriers. f 1

Referring to the drawings by numerals,

l and 2 designate the inner and kouter tele` scopically connecte-dtubesrespectively. The first nii-med'tube instead of being ventirelyclosed at the. right-hand end `has a portion 'of this closed end cutout,a circular casting 3 being soldered or otherwise secured to theunremoved part ot the closed end asclearly illustrated. The outer `tubeat `the opposite end is likewise constructed. The telt heads 4L whichcan be conveniently termed bumpers or packing members ,are non-rotatably[con-`vl nectedxwith the casting byno-vel means. Vhile this means maybeconstructedotherwise, it preferably consists of awpair of heads oit'cross-formation which are bolted vor otherwise secured to the innerfaces of the bumpers lt is to be stated here `that as both castingsy 3are termed attheir centers with openings of crossQforination and thearms of the heads 'exten'd intofthese openings and thus serve to preventrotation'ot the bumpers with respect tothe castings. i

l. he bumpers may therefore be used `as hand-` one another. It may beconveniently pointl ed out yherethat the ends of the arms of the crossmember 5 are notched as indicated at .6 and the reduced ends permittedto serve as stops which are received in the notches 7 formed in theouter faces of the parts 3. As

.lfact that. they are likewise constructed in the form of a cross andare rotatably and detachably connected with the aforesaid heads or crossmembers 5 by means of small.

bolts 9. These catches are formed of resilient metal and are bowed asclearly shown in Figure l` and when it is desired to hold the bumpers inplace, the arms thereof are positioned between the arms of the member 5andare received in recesses l() formed in the inner faces ofthecastingsl 3. The tension'or pressure exerted by the catchescan bevaried by adjusting the bolts 9. With this arrangement it is obviousthat in order to remove the bumpers, it is only necessary toengageoneofthe arms of the catchesby a suitable instrument and rotate the catchuntil the `arms thereof are positioned directly `the catches andcross-members will be in such a position as to permit the cross-memberstoI be withdrawn from the cross shaped openings in the castings. It maybe conven iently set forth here that the resiliency of the Acat-chestends to draw the cross members 5 through the cross-shaped openings inthe castings, but by reducing the ends of the arms of the members 5 toprovide the aforesaid stops and permitting these stops to extend into`the notches 7 in the outer faces of the casting 3, these members 5 areprevented from being drawn through the open-y ingsl as might otherwiseoccur.

The manner of removing and replacing` the bumpers has doubtlessbeen madeclear by the foregoing description. However, ya brief review of theoperation of the device ina-y well be inserted here. To this end, itisto be stated that to remove one of the bumpers, simply engage asuitable instrument with one of the arms of the cross shaped catches 8and rotate the catch or catches until the arms thereof. are positioneddirectly over the arms of the cross members 5. Then, the cross member 5can be withdrawn from the correspondingly shaped opening yof the casting3 and the bumper thus removed. The new bumper can be placedin positionby simply reversing thel operation. f

By carefully considering the description in connection with thedrawings, persons familiar with devices of this class will doubtless beable to obtain a clear understanding of the invention. Therefore, a morelengthy and detailed description is deemed unnecessary.

Since probably the best results may beobtainedv with the constructionand arrange ment herein shown'and described, this is taken as thepreferred embodiment of the invention. However, I wish it to' beunderstood that minor changes coming within'the scope of the inventionas claimed may be resorted to if desired.-

l claim:

l. A dispatch carrier comprising a body, heads arranged at the oppositeends there# of, means for non-rotatably engaging said heads with theopposite ends of said body, andy separate and lindependent retainingmeans for the heads, said means permitting quick attachment anddetachment of the latter.

2. A dispatch carrier comprising a body,

closed at its opposite ends, said closed ends i being formed withnon-circular openin s, bumpers, non-circular projections on t e innerfaces of the bumpers extending into said non-circular openings, andcatches carried by said projections, said catches being engageable withthe closed ends for holding the bumpers in position but permitting quickapplication and removal thereof.

3. A dispatch carrier comprising a body closed at its outer ends, saidends being formed with openings of cross formation, a

for non-rotatably engaging it with thecar-l rier, and a rotary retainingdevice carried by said means. l

5. A bumper for pneumatic dispatchV carriers provided on its inner facewith a noncircular projection, and a rotary locking device carried b vthe latter.

6. A vbumper for dispatch carriers comprising a body having asubstantially crossshaped projection on its inner face, and a similarlyshaped latch rotatably connected to said projection.

7. A bumper for pneumatic dispatch tube carriershaving a portion toextend through an opening formed inone end of the cai= rier to preventrelative rotation with respect to the latter. and a movable retainingdevice associated with said portion and enpermit removal of the bumper.

8. A bumper for use on pneumatic dispatch tube carriershavmg aproJection on 'its inner face to extend throughanopening formed in oneend of the carrier, and zt rotary locking device connected to saidprojection andengageable `with the end of said carrier, said `lockingdevice being,- movable to e position to clear the edge of the opening topermit Withdrawal of the projection therefrom, whereby to permit rapiddis` connection of the bumper,

In testimony whereof I have hereunto Set my hand.

DANIEL J. MAOMILLAN.

